LISUN Needle Flame Tester-Core Equipment for Fire Safety Testing in the Electrical and Electronic Field

1. Introduction
With the rapid iteration and wide application of electrical and electronic equipment, household appliances, lighting, and information technology devices, fire safety issues during product operation have attracted increasing attention. “Small flames” caused by faults such as internal circuit short circuits and component overheating in equipment, although small in scale, may ignite surrounding insulating materials, leading to fire accidents, property losses, and safety risks. Against this background, testing equipment capable of accurately simulating such fault scenarios and scientifically evaluating product flame resistance has become an industry necessity. As a core device specifically addressing this demand, the needle flame tester provides quantitative data support for product fire safety through standardized testing processes. With years of experience in the testing equipment field, LISUN has developed the ZY-3 Needle Flame Tester targeting industry pain points. Thanks to its accuracy, stability, and versatility, it has become the preferred equipment for numerous enterprises and testing institutions (For details: https://www.lisungroup.com/products/electrical-safety-tester/needle-flame-test.html).

2. Overview of LISUN ZY-3 Needle Flame Tester
2.1 Design Purpose and Core Positioning
The LISUN ZY-3 Needle Flame Tester is tailor-made for industries including electrical and electronic equipment, household appliances, lighting, and information technology devices. Its core positioning is to simulate “small flames” generated by faults such as internal circuit short circuits and component overheating in equipment, and to evaluate the flame resistance and fire safety of products and insulating materials under small flame ignition scenarios. The equipment applies flame to test samples directionally through a standard needle-shaped burner, accurately capturing the ignition state, afterflame time, and combustion spread of the samples. It provides standard-compliant test data for product R&D optimization, factory quality inspection, and third-party certification, helping enterprises meet the fire safety requirements for market access.
2.2 Core Functions and Structural Design
Adopting a modular design, the ZY-3 Needle Flame Tester integrates multiple core functions to ensure testing accuracy and operational convenience. The equipment is equipped with a precise temperature control system, automatic timing module, and data recording function. Key testing parameters such as flame temperature rise rate and flame height strictly comply with international and domestic standards. The operation method adopts a self-developed large LCD touchscreen combined with remote control dual-mode, which not only simplifies the testing process but also avoids operators’ close contact with high-temperature flames, improving operational safety. The fuselage is made of high-temperature sprayed steel structure, featuring high-temperature resistance and corrosion resistance, which can adapt to long-term high-temperature testing environments and extend the service life of the equipment. In addition, the equipment supports testing of samples of different sizes, and the burner angle and number of flame applications can be flexibly adjusted to adapt to diverse testing scenarios.

3. Core Technical Parameters of LISUN ZY-3 Needle Flame Tester
To intuitively show the technical indicators and performance differences of the equipment, the following table lists the core specifications of the ZY-3 series needle flame testers (including two models: ZY-3 with cabinet and ZY-3S without cabinet):

As shown in the table, the two models maintain consistent core testing performance, differing only in fuselage structure and weight. Enterprises can flexibly choose according to laboratory space and testing needs.

4. Application Fields of LISUN ZY-3 Needle Flame Tester
4.1 Electrical and Electronic Equipment Industry
This field is one of the core application scenarios of the needle flame tester, covering various products such as low-voltage electrical appliances, switches and sockets, and cables. For low-voltage electrical components such as relay/contactor housings, circuit breaker insulating parts, and terminal bases, the equipment can test their resistance to ignition by contact arcs, complying with GB/T 5169.5-2020 and IEC 60695-2-2:2021 standards. For insulation layers of household and industrial cables, the equipment verifies flame resistance under local overheating, meeting the requirements of GB/T 18380.1-2022 and IEC 60332-1-2:2017. For panels and plastic parts around contacts of switches and sockets, the equipment can simulate small flames caused by current overload to evaluate their fire safety performance, adapting to multiple standards such as GB/T 2099.1-2021 and IEC 60884-1:2022.
4.2 Information Technology and Audio-Visual Equipment Industry
Housings and insulating parts of core equipment such as computers, printers, and routers need to be tested for flame resistance against overheating of chips and power modules through the needle flame tester, complying with GB/T 4943.1-2022 and IEC 62368-1:2023 standards. For high-voltage component peripheral parts such as display driver boards and projector housings, the equipment evaluates fire safety under fault conditions. Housings and internal parts of mobile phone/tablet chargers can simulate small flames caused by short circuits, meeting UL 94:2024 flame retardant requirements and adapting to GB/T 5169.5-2020 and IEC 60695-2-2:2021 standards.
4.3 Lighting Equipment Industry
In the field of conventional lighting, components such as LED driver housings, lamp heat sinks, and lamp holder insulating materials are tested for fire safety through the needle flame tester, complying with GB 7000.1-2015 and IEC 60598-1:2020 standards. Products such as fluorescent ballasts and halogen lamp brackets need to be tested for afterflame performance of small flames under faults through the equipment. Internal plastic parts of special lighting equipment such as stage lights and outdoor floodlights, which operate in high-temperature environments for a long time, need to be evaluated for flame resistance around high-temperature components through the equipment, meeting the requirements of multiple national and international standards.
4.4 Automotive Electronics and On-Board Equipment Industry
Housings of navigators/on-board chargers and insulation layers of automotive wiring harnesses in the field of on-board electronics are tested for flame resistance through the needle flame tester, complying with GB/T 2408-2021, IEC 60695-11-5:2016, and ISO 6722-1:2019 standards. Components such as central control panels and door trim need to simulate ignition risks caused by heater component faults. Insulating parts of new energy vehicle charging piles and battery management system housings are tested for flame resistance under charging overload and circuit fault conditions through the equipment, adapting to standards such as GB/T 5169.5-2020 and IEC 60695-2-2:2021 to ensure the safety of new energy vehicles in use.
4.5 Material R&D and Testing Field
Engineering plastics such as ABS, PC, and PA, flame-retardant modified materials, epoxy glass cloth boards, and polyimide films all need to determine their ignition performance and afterflame time under small flames through the needle flame tester. This provides data support for material formula optimization and application selection, with the testing process complying with GB/T 5169.5-2020 and IEC 60695-2-2:2021 standards.

5. Standard Compliance and Industry Value
5.1 Standard Adaptation
The LISUN ZY-3 Needle Flame Tester strictly complies with multiple core international and domestic standards, ensuring the authority and versatility of test results. The specific reference standards are shown in the following table:

In addition, the equipment can adapt to multiple industry-specific standards such as UL 94:2024 and VDE 0471-2-2:2021, meeting testing needs in different regions and fields.
5.2 Industry Application Value
Supporting product R&D: During the product design phase, the needle flame tester helps identify shortcomings in material flame resistance in advance, optimize product structure and material selection, and reduce potential safety risks in the later stage.
Ensuring factory quality: As a key equipment for factory quality inspection, it can conduct sampling tests on each batch of products to ensure compliance with fire safety standards and enhance market competitiveness.
Assisting third-party certification: It provides standardized test data for enterprises applying for domestic and international product certifications, shortens the certification cycle, and helps enterprises enter the market quickly.
Promoting industry standardization: The wide application of the equipment promotes the standardization of fire safety testing and drives the improvement of safety performance across the industry.

6. Conclusion
As a core device for fire safety testing in industries such as electrical and electronic equipment, household appliances, lighting, and information technology devices, the technical performance of the needle flame tester directly affects the accuracy and reliability of test results. The LISUN ZY-3 Needle Flame Tester provides an efficient and scientific testing solution for the industry with its precise testing capabilities, rich functional configurations, wide standard adaptability, and diverse application scenarios. The equipment not only meets the practical needs of enterprises in product R&D, factory quality inspection, and third-party certification but also plays an important role in promoting the improvement of fire safety levels in the industry. With the continuous improvement of safety performance requirements in related industries, the needle flame tester will continue to iterate and upgrade. As a professional testing equipment supplier, LISUN will also continuously optimize product technology to provide global customers with higher-quality fire safety testing equipment and services.